N = int(input())
l = []
for _ in range(N):
    a,b = map(int,input().split())
    l.append((b,a))
l.sort(reverse = True)
Sum = [0] * N
Sum[0] = l[-1][1]
for i in range(1,N):
    Sum[i] = Sum[i-1] + l[-1-i][1]
Sum.insert(0,0)
import sys
for i in range(N):
    b = l[i][0]
    if b < Sum[-2-i]:
        print('No')
        exit()
print('Yes')